Electric hair-curling device



Feb. 5, 1929.

O. C. KERNSPECHT ET AL ELECTRIC HAIR CURLING DEVICE Filed Nov. 26, 1924 Patented Feb. 5, 1929.

warren STATE-S PATENT OFFICE.

OTTO C. KERNSPECHT AND GEORGE H. KEBNSPECHT, OF CLEVELAND, OHIO.

ELECTRIC HAIR-CURLING DEVICE.

Application filed November 26, 1924. Serial No. 752,481.

This invention relates to in'iprovements in electric hair curling devices, the present embodiment of the invention relating more particularly to what are commonly known as electric curling irons.

The present form of the device is particularly designed and adapted for use in connection with ordinary electric lighting circuits and as a portable device in the home for producing hair waves of the ldarcel type.

The primary object of the invention is to provide a generally improved hair curling or waving device of the character indicated, which will be exceedingly simple in construction, cheap of manufacture, and efficient in use.

A further and very important objectis the provision of transversely convoluted matrix and hair pressing elements having a plurality of convolutions struck from axes at substantially right angles to the axes of said transverse convolutions whereby curls or waves are formed having their axes at substantially right angles to the axes of the trans verse curls or waves.

Vith the above mentioned and other ends in view, the invention consists in the novel construction, arrangement, and combination of parts, hereinafter described, illustrated in one of its embodiments in the accompanying drawings, and particularly pointed out in the appended claims.

Referring to the drawings, forming a part of this specification, Figure 1 is a side elevation of an electric hair curling device, constructed in accordance with this invention.

Fig. 2, a top plan of the same.

Fig. 3, a plan view of the under or reverse side of the electric resistance heater head or matrix.

Fig. l, an end elevation of the same, detached.

Fig. 5, a longitudinal sectional view of the median or resistance coil carrying receptacle of the heating head or matrix.

Fig. 6, an end elevation of the hair clamping member or prong elements, detached from the heater head or matrix.

Fig. 7 is a transverse section of the channelled upper plate and flat lower plate of the matrix member showing the fork in engagement therewith.

Similar numerals of reference designate like parts throughout all the figures of the drawings.

The improved electric curling iron comprises a relatively fixed handle 1, terminating in an electric heater head 01' matrix 2, and a relatively movable handle 3, terminating in hair pressing or clamping elements, said elements, in the present instance, being in the specific form of prongs or fingers 4-.

In the present instance the head or matrix 2 is formed separate from the handle 1 and comprises a curved base section 2 having upturned flanges 2" (see Fig. 4) and a cover section 2 united to the flanges 2 by means of marginal headings 2. i

As a means of providing transverse c0nvoluted meeting surfaces between the matrix 2 and the pressing elements or prongs 4-, and. also as a means of heating the matrix through a suitable electric resistance element, the cover section 2 is provided with a median rib 2 affording a receptacle 2 (see Fig. 5) for the electric heater or resistance elements 5 connected to the conductor cords 6, which latter,

in the present instance, are arranged within the tubular handle section 1.

The matrix is also provided with channel shaped grooved recesses 2, on opposite sides of the median rib 2, and the handle 3 may be connected to the handle 1 by means of a bearing lug 7 and a pivot element 7, so that the handle 3 and prongs t may be readily moved to open position, as indicated by dotted lines in Fig. 1 of the drawings.

It will be seen that the meeting surfaces of the rib 2 and recesses 2 in connection with the prongs 4 0f the movable handle are such as to form transversely convoluted meeting surfaces for providing the usual curls or waves in the hair passing transversely therebetween, and as a means of forming longitudinally convoluted meeting surfaces, the prongs 41 are provided with longitudinal convolut-ions 4L struck from axes extending substantially at right angles to the axes of the transversely convoluted surfaces between the matrix and. pressing elements formed as above stated, the rib 2 and recesses 2 having similarly shaped convolutions 2 so that the con volutions 4 and 2 are substantially coincident, the result being that the waves or curls formed between the convolutions 4 and 2 are formed with their axes substantially at right angles to the axes of the curls formed between the transversely convoluted surfaces of the matrix and pressing or prong elements, as above referred to.

As a means of expediting the heating and curling of the hair when grasped between the matrix and hair pressing elements, the bottom portions oi the grooves or recesses 2 are preferably formed substantially fiat, as shown most clearly in Fig. l of the drawings. and likewise the bottom portions l of the prongs or elements 4, as shown most clearly in Fig. 6 of the drawings,-the result being that the hair at the edges of the bottom portions l and adjacent to the heated bot tom surfaces of the grooves or recesses is bent rather abruptly and held in such position while being thus grasped and heated. A plate P integral with the bottom plate, closes the open end of the central channel.

Having thus described one or the embodiments of this invention, without having attempted to set forth all the forms in which it may be made, or all the modes of its use, what we claim and desire to secure by Letters Patent is 1. In an electric hair waving implement, a sheet metal matrix member formed in cover and base portions, the base portion being flat in transverse section, and having its longitudinal edges raised and sinuous, and said cover portion, having its longitudinal edges raised and sinuous and interlocked with the longitudinal edges of said base, said cover being fiat in cross section and de, ressed into said base and in contact therewith, said cover having a raised, sinuous central longitudinal chamber therein, for the reception of flexible heating element, longitudinal sinuous channels being formed between the side walls of said chamber and the raised longitudinal edges of said cover.

2. In an electric hair waving implement, a sheet metal matrix member formed in cover and base portions, the base portion being flat in transverse section, and having its longitudinal edges raised and sinuous, and said cover portion, having its longitudinal edges raised and sinuous and interlocked with the longitudinal edges of said base, said cover being flat in cross section and depressed into said base and in contact therewith, said cover having a raised, sinuous central longitudinal chamber therein, for the reception of a flexible heating element, longitudinal sinuous channels being formed between the side walls of said chamber and the raised longitudinal edges of said cover, and a flexible heating element secured within said raised chamber. In an electric hair waving implement, a

sheet metal matrix member formed in cover gitudinal edges of said base, said cover being flat in cross section and depressed into said base, said cover having a raised, sinuous central longitudinal chamber therein, for the reception of a flexible heating element, longitudinal sinuous channels being formed between the side walls of said chamber and the raised longitudinal edges of said cover, and a flexible heating element secured within said raised chamber and a forked pressing member hinged to said matrix member and provided with corresponding sinuous prongs having complementary flat pressing surfaces and angular edges, and serving to mold and set the strands of hair pressed be tween the surfaces of said cover and channels.

4-. In an electric hair waving implement, the combination with a sheet metal base having an upturned and laterally sinuous flange upon each longitudinal edge, of a sheet metal cover positioned thereon and having a complementary upturned and laterally sinuous flange upon each longitudinal edge, the edges of said flanges upon said base and cover being united together, said cover being provided with a longitudinal medium hollow rib for the reception of a flexible heating element, the sides of said rib being similarly sinuous, longitudinal channels being formed between the sides of said hollow rib and said flanged edges, said channels having their bot-tom surfaces flat in cross section, and a forked pressing member hinged to said matrix member, and provided with correspondingly sinuous prongs, having their pressing surfaces flat in cross section, and having angular edges serving to mold and set the strands of hair pressed between the surfaces of said prongs and channels.

In testimony whereof we have aflixed our signatures.

OTTO C. KERNSPEOHT. GEORGE H. KERNSPEGHT. 

